Osg 1500200500 Plug Thread Gage M6x0.75 6H Class

Product Description

The OSG 1500200500 is a double-end plug thread gage designed to verify internal M6x0.75 threads to the 6H tolerance class. One end is the Go member and the other is the No Go member, allowing a technician to confirm both the minimum and maximum thread limits in a single tool. The gage body is machined from high speed steel for wear resistance during repeated use. A handle is included. This type of gage is standard shop tooling for machinists, quality control inspectors, and precision assembly technicians working to metric thread specifications.

This gage is suited for inspection of M6x0.75 fine-pitch threaded holes in production or maintenance environments. Typical applications include verification of tapped holes in mechanical assemblies, fixture components, and threaded inserts where 6H class fit is specified. It is appropriate for both floor-level inspection and receiving inspection workflows in manufacturing, aerospace, automotive, and general mechanical trades.

Key Features

• Double-end design combines Go and No Go members in one tool for efficient thread verification
• M6x0.75 thread size covers fine-pitch metric fastener applications
• 6H classification conforms to standard internal thread tolerance requirements
• High speed steel construction provides durability and dimensional stability under repeated use
• Handle included — no separate handle purchase required

Compatibility

Designed for inspection of M6x0.75 internal threads manufactured to 6H tolerance class per applicable metric thread standards.

Installation Notes

Thread gages are inspection instruments, not cutting tools — they should never be forced into a tapped hole. Ensure the workpiece is clean and free of chips or coolant before gauging. Gages should be periodically checked against calibration masters to confirm they remain within tolerance. Handle and store the gage carefully to prevent nicks or corrosion that could affect measurement accuracy.